Answer / Arvind Tripathi

Here's an example of a function in Python to check if a given word is a palindrome:

```python
def is_palindrome(word):
reversed_word = word[::-1]
return word == reversed_word
```

Can you explain the difference between a Test Set and a Validation Set?

1 Answers  

---

What are you employed pip?

1 Answers  

---

Explain the difference between data science, machine learning and artificial intelligence?

1 Answers  

---

Given 2 vectors, how will you generate a sorted vector?

1 Answers   LinkedIn,

---

How do you check for data quality?

1 Answers  

---

What is nosql? Name some examples of nosql databases. What is a key value store? What is column storage? What is a document database?

1 Answers  

---

What is the difference between bayesian estimate and maximum likelihood estimation (mle)?

1 Answers  

---

You are given a training dataset of users that contain their demographic details, the pages on Facebook they have liked so far and results of psychology test based on their personality i.e. their openness to like FB pages or not. How will you predict the age, gender and other demographics of unseen data?

1 Answers   American Express,

---

How can bogus Facebook accounts be detected?

1 Answers   Facebook,

---

Find out K most frequent numbers from a given stream of numbers on the fly.

1 Answers   LinkedIn,

---

What is overfitting?

1 Answers  

---

Explain the goal of a/b testing?

1 Answers  

---